# Bone Broth for Skin, Hair & Nails: Does the Collagen Actually Work?
Bone broth contains type I and type III collagen — the same types found in skin, hair follicles, and nails. When you consume bone broth regularly, your body breaks these proteins down into amino acids and peptides, which it may then use to support its own collagen production. The evidence is more nuanced than most beauty marketing suggests, but it is more promising than most sceptics admit.
This article covers what the collagen in bone broth actually does in your body, what studies say about collagen and skin/hair/nail health, and what realistic expectations look like after 30–90 days of regular use.
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What Is Collagen and Why Does It Matter for Skin, Hair & Nails?
Collagen is the most abundant protein in the human body — making up approximately 30% of total protein mass. It is the primary structural protein in:
- **Skin** — maintaining firmness, elasticity, and hydration
- **Hair** — providing structural integrity to the hair shaft and follicle
- **Nails** — forming the nail plate and nail bed matrix
From our mid-20s, the body's natural collagen production declines at roughly 1–2% per year. By 40, many people notice the visible effects: skin that looks less plump, hair that feels more brittle, nails that chip more easily.
This decline is driven by a combination of factors: age, UV exposure, smoking, poor sleep, and low dietary protein intake. Supplementing with collagen-rich foods like bone broth is one dietary strategy that has attracted real scientific interest.
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How Much Collagen Is in Bone Broth?
Not all bone broths are equal. The collagen content depends on:
- The type of bones used (knuckles, feet, and joints yield the most collagen-rich gelatin)
- The cooking time (longer simmering extracts more collagen)
- Whether the final product is a concentrate, liquid, or powder
A 250ml serving of grass-fed beef bone broth concentrate typically contains 10–12g of collagen protein. Ready-to-drink cartons often deliver 2–5g per serving. Bone broth powders vary widely — some use hydrolysed collagen peptides, others use spray-dried broth with significantly lower active collagen.
For reference, the clinical studies on collagen supplementation that have shown skin improvements typically use doses of 2.5–10g of collagen peptides per day. A daily serving of quality concentrate falls within this range.
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What the Evidence Says
Skin
A 2019 systematic review published in the Journal of Drugs in Dermatology reviewed 11 randomised controlled trials on oral collagen supplementation. Eight of the 11 studies showed statistically significant improvements in skin hydration, elasticity, and wrinkling. The most consistent effects were seen with type I and type III hydrolysed collagen peptides — the types found in beef bone broth.
Results typically appeared after 8–12 weeks of daily supplementation.
A 2021 review in Nutrients concluded that oral collagen supplementation appears to increase skin density and reduce collagen fragmentation in the dermis — in other words, it may support the structural layer of skin where aging is most visible.
Important caveat: Most studies use isolated collagen peptide supplements rather than whole bone broth. Bone broth contains collagen alongside other compounds (glycine, proline, gelatin, minerals) which may have complementary effects — but the research is less direct.
Hair
The evidence for collagen and hair is less robust than for skin, but mechanistically it makes sense. Collagen provides cysteine — an amino acid that forms part of the keratin structure of hair. Proline, another amino acid abundant in collagen, is a precursor to hydroxyproline, which forms part of the hair follicle's extracellular matrix.
A 2021 study in Journal of Cosmetic Dermatology found that collagen supplementation was associated with improvements in hair thickness and reduced hair loss in women with thinning hair, over a 24-week period.
Nails
A 2017 study in the Journal of Cosmetic Dermatology found that 2.5g/day of bioactive collagen peptides over 24 weeks led to a 12% increase in nail growth rate and a 42% reduction in the frequency of broken nails. 88% of participants reported an overall improvement.
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Bone Broth vs Collagen Supplements: Which Is Better for Skin?
| Factor | Bone Broth Concentrate | Collagen Peptide Powder |
|---|---|---|
| Collagen per serving | 10–12g | 10–15g (varies) |
| Type | I + III (native) | I + III (hydrolysed) |
| Additional nutrients | Glycine, gelatin, minerals, glutamine | Often none |
| Bioavailability | Good (collagen broken down during cooking) | High (pre-hydrolysed) |
| Additives | None in quality concentrate | Often contains sweeteners, flavourings |
| Gut benefits | Yes (gelatin, glutamine) | Minimal |
| Taste | Savoury | Often flavoured or neutral |
Hydrolysed collagen peptides in powder form may have slightly higher bioavailability than native collagen from whole bone broth — the pre-digested peptides are absorbed more efficiently. However, bone broth delivers a broader range of co-factors (gelatin, glycine, proline, minerals) that may enhance the overall effect on connective tissue.
For most people, bone broth is the more complete option — especially if you also want gut or joint support alongside beauty benefits.
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How to Use Bone Broth for Skin, Hair & Nail Benefits
Daily dose: One 250ml serving of prepared bone broth (from 10ml concentrate) provides a meaningful collagen dose. For targeted skin/hair/nail support, aim for one serving per day consistently.
Consistency matters more than quantity. A daily serving for 90 days will produce more measurable results than sporadic higher doses. Collagen's effects are cumulative — you are supplying building blocks, not activating an immediate switch.
Timing: Any time of day works. Many people drink bone broth in the morning as an alternative to coffee, or in the evening as a warming drink before bed. The glycine in bone broth is associated with improved sleep quality, which itself supports skin repair.
Flavour options for daily use:
- Plain beef bone broth — neutral, savoury, versatile
- Turmeric bone broth — anti-inflammatory turmeric adds a warming, slightly spiced flavour
- Garlic & herb bone broth — more complex flavour, good as a savoury drink or cooking base
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What to Expect: A Realistic Timeline
| Week | Typical changes |
|---|---|
| 1–2 | Improved digestion, reduced bloating (gut effects often appear first) |
| 4–6 | Some people notice improved nail hardness |
| 8–12 | Skin hydration and elasticity improvements begin to be noticeable |
| 12–24 | Hair thickness and reduced breakage more commonly reported |
Individual results vary significantly based on baseline collagen levels, diet, lifestyle factors, and genetics. People with notably depleted collagen (older adults, those with high UV exposure) tend to see more pronounced results.
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FAQ
How long does it take for bone broth to improve skin?
Most studies showing skin improvements used 8–12 weeks as their measurement window. Expect visible results to take at least 2–3 months of daily use. Some people notice subtle changes (improved hydration, less puffiness) earlier, but structural skin changes take longer.
Is beef bone broth better than chicken for collagen?
Both contain primarily type I collagen. Beef bone broth tends to have higher collagen content per serving when made from knuckle and joint bones. Chicken bone broth (particularly from feet and carcasses) also yields good collagen. For skin and nail support, both work — the key variable is concentration, not species.
Can I cook with bone broth concentrate and still get collagen benefits?
Yes. Cooking with bone broth concentrate preserves the amino acid and peptide content — collagen doesn't degrade significantly at normal cooking temperatures. Add it to soups, stews, risottos, or sauces.
Is bone broth good for anti-ageing?
It supports the dietary side of skin health — collagen, hydration, and anti-inflammatory compounds. It is not a standalone anti-ageing intervention, but it is a sensible addition to a diet that prioritises skin health, alongside sun protection, adequate sleep, and hydration.
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The Bottom Line
Bone broth contains meaningful amounts of type I and type III collagen alongside glycine, gelatin, and proline — all compounds with a plausible mechanism for supporting skin elasticity, hair structure, and nail strength. The evidence for collagen supplementation (including from food sources) is more robust than many dismiss, particularly for skin hydration and elasticity over 8–12 weeks.
The key is consistency. One daily serving of quality, grass-fed bone broth concentrate is a practical and evidence-informed way to support collagen intake — without the artificial sweeteners and additives common in many collagen powders.
Explore our range: plain beef bone broth, turmeric bone broth, and garlic & herb bone broth. Free UK delivery on all orders.
